Title

Evolutionary trends of industry variables

Authors

Authors

R. Agarwal

Comments

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Abbreviated Journal Title

Int. J. Ind. Organ.

Keywords

evolution; product life-cycle; time-trends; DIFFUSION; SURVIVAL; ENTRY; EXIT; Economics

Abstract

The paper offer's empirical evidence on the evolutionary trends of industry variables. It investigates the time path of patents, product price and quantity, and number of firms from the first introduction of a product to maturity of the market. The paper extends earlier work by Gort and Klepper by expanding the data on products through 1991, and augmenting it with new products and new data sources. The reexamination of the aging patterns reveal the Gort and Klepper results to be robust. The time trends follow the expected patterns with remarkable consistency and are strongly significant for most products. New evidence on patenting activity reveal an eventual decline in technological activity over the later years of the product market life-cycle. (C) 1998 Elsevier Science B.V.

Journal Title

International Journal of Industrial Organization

Volume

16

Issue/Number

4

Publication Date

1-1-1998

Document Type

Article

Language

English

First Page

511

Last Page

525

WOS Identifier

WOS:000073430400006

ISSN

0167-7187

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